High Performance 9 kHz to 7.1 GHz
Handheld Spectrum Analyzer
MS2721B
Spectrum Master™
Introduction
Continuous frequency coverage from 9 kHz to 7.1 GHz gives the wireless professional the performance needed
for the most demanding measurements in harsh RF and physical environments.
Whether you need spectrum monitoring, AM and FM broadcast proofing, WiFi and WiFi5 installation and testing,
RF and microwave signal measurements or cellular signal measurements, the MS2721B Spectrum Master is the tool to
make your job easier and more productive.
High Performance Highlights
• 9 kHz to 7.1 GHz Input
• 1 Hz to 3 MHz RBW Range
• Very Low Phase Noise
(–100 dBc/Hz Maximum at 10 kHz
offset at 100 kHz to 7.1 GHz)
• Built-in AM/FM/SSB Demodulator
• Built-in Preamplifier
• 65 dB Step Attenuator
• Input Protected to 20 Watts
• True RMS Detection
• 2+ Hours of Battery Life
• 3.1 kg (<6.9 lbs)
• 3G Modulation options
• Tracking Generator option
• GPS Receiver option
• Quasi-peak detector and CISPR
bandwidths
The Anritsu MS2721B is the most advanced ultra-portable spectrum analyzer
on the market, featuring unparalleled performance at a modest price.
Features and Options
Functions
Multiple Marker: Display up to six markers on screen. Each marker includes
a delta marker, effectively allowing up to 12 markers on screen. The user may
lso set marker 1 to be the reference for 6 delta markers.
a
Marker Table: Display a table of up to six marker frequency and amplitude
values plus delta marker frequency offset and amplitude.
Upper/Lower Limit
Fixed and segmented: Each upper and lower limit can be made up of
etween one and 40 segments.
b
Smart Measurements
Occupied Bandwidth: Measures 99% to 1% power channel of a signal.
Channel Power: Measures the total power in a specified bandwidth.
C/I: Measures carrier to interference ratio.
CPR:Measures power levels in the channels immediately above and below
A
the center channel.
Field Strength: Uses antenna calibration tables to measure dBm/meter
or dBmV/meter.
2
Specifications
Frequency
Frequency Range: 9 kHz to 7.1 GHz
Tuning Resolution: 1 Hz
Frequency Reference:
±1 ppm per 10 years
Aging:
Accuracy: ±0.3 ppm (25º C ± 25º C) + aging
Frequency Span: 10 Hz to 7.1 GHz plus 0 Hz (zero span)
Span Accuracy: Same as frequency reference accuracy
Sweep Time:
Zero span:
Spans >0 Hz: Sweep time is automatically optimized.
Can be manually increased
Sweep Time Accuracy: ±2% in zero span
Sweep Trigger: Free run, Single, Video, External
Resolution Bandwidth: (–3 dB) 1 Hz to 3 MHz in 1-3 sequence ±10%,
Video Bandwidth: (–3 dB) 1 Hz to 3 MHz in 1-3 sequence
SSB Phase Noise:
Offset from carrierMax
10, 20 and 30 kHz–100 dBc/Hz
100 kHz
Amplitude
Measurement Range: DANL
Display Range: 1 to 15 dB/div in 1 dB steps. Ten divisions displayed.
Amplitude Units:
Log Scale Modes:
Linear Scale Modes: nV, µV, mV, V, kV, nW, µW, mW, W, kW
Attenuator Range: 0 to 65 dB
Attenuator Resolution: 5 dB steps
Absolute Amplitude Accuracy:
Power levels:
≥–50 dBm, ≤35 dB input attenuation
9 kHz to ≤10 MHz
>10 MHz to 4 GHz
>4 to 7.1 GHz±1.75 dB
40 to 55 dB input attenuation
9 kHz to ≤10 MHz±1.5 dB
>10 MHz to 4 GHz
>4 to 6.5 GHz±1.75 dB
>6.5 to 7.1 GHz±2 dB
10 ms to 600s
–102 dBc/Hz
to +30 dBm
dBm, dBV, dBmv, dBµV
±1.5 dB
±1.25 dB
±1.75 dB
0 to 65 dB input attenuation
6
9 kHz to ≤10 MHz±1.5 dB
10 MHz to 6.5 GHz±1.75 dB
>
>6.5 to 7.1 GHz±3 dB
reamplifier on, 0 or 10 dB input attenuation
P
100 kHz to 4 GHz±1.5 dB
>4 to 7.1 GHz±1.75 dB
Second Harmonic Distortion
(0 dB input attenuation, –30 dBm input):
0.05 to 1.4 GHz–50 dBc
>1.4 to 2 GHz–70 dBc
>2 GHz–80 dBc
Third Order Intercept (TOI):
–20 dBm tones 100 kHz apart, –20 dBm Ref level,
(
0 dB input attenuation, preamplifier off)
FrequencyMin
600 MHz+7 dBm
3.5 GHz+9 dBm
FrequencyTypical
50 MHz to 300 MHz>8 dBm
>300 MHz to 2.2 GHz 10 dBm
>2.2 to 2.8 GHz>15 dBm
>2.8 to 4.0 GHz>10 dBm
>4.0 to 7.1 GHz>13 dBm
Dynamic Range 2/3 (TOI-DANL) in 1 Hz RBW:
600 MHz95 dB min
3.5 GHz96 dB min
Displayed Average Noise Level (DANL) in 1 Hz RBW:
FrequencyPreamplifier OnPreamplifier Off
Typical MaxTypical Max
10 MHz to 1 GHz–163–161–140–137
>1 GHz to 2.2 GHz–160–159–136–133
>2.2 to 2.8 GHz–156–153–130–126
>2.8 to 4.0 GHz–160–159–139–136
>4.0 to 7.1 GHz–158–154–131–127
(0 dB input attenuation, RMS detection, Reference level = –20 dBm for
preamplifier off and –50 dBm for preamplifier on)
Note: Discrete spurious signals are not included in the measurement of DANL
as they are covered by the residual spurious specification.
Equivalent Noise Figure, 23º C:
(Preamplifier on, 0 dB input attenuation)
ypical
Frequency
10 MHz to 1 GHz1
>1 GHz to 2.2 GHz14 dB
>2.2 to 2.8 GHz18 dB
>2.8 to 4.0 GHz14 dB
>4.0 to 7.1 GHz
Hardware needed to run any of the demodulation options
PSN50 High Accuracy Power Meter (Option 19)
PSN50 Sensor:
Measurement Range:
requency Range:50 MHz to 6 GHz
F
Input Connector: Type N, male, 50 Ω
ax Input Without Damage:+33 dBm, ±25 VDC
M
Input Return Loss: 50 MHz to 2 GHz: ≥26 dB
PSN50 Accuracy:
otal RSS Measurement Uncertainty (0º C to 50º C):
T
Noise: 20 nW max
Zero Set: 20 nW
Zero Drift: 10 nW max**
Sensor Linearity: ±0.13 dB max
Sensor Cal Factor Uncertainty: ±0.06 dB
Temperature Compensation: ±0.06 dB max
Continuous digital modulation uncertainty:
±0.06 dB (+17 to +20 dBm)
PSN50 System:
Measurement Resolution:
Offset Range: ±60 dB
Power Requirements:
Supply Voltage:
Supply Current: <100 mA
Tracking Generator (Option 20)
Frequency Range: 100 kHz to 7.1 GHz
Frequency Resolution: 1 Hz
Frequency Accuracy (25º C ±25º C): Same as spectrum analyzer
Output Power: 0 dBm to –40 dBm
Step Size: 0.1 dB nominal
Level Accuracy (15º C to 35º C): ±1.5 dB max, 450 kHz to 7.1 GHz,
Zero Span Behavior: CW Output
Output Connector: Type N female, 50 Ω
Damage Levels: +23 dBm
±50V DC (limited dv/dt)
2 kV ESD
Analyzer (Option 25)
Interfer
Signal Strength: Gives visual and aural indication of signal strength
RSSI: Collect data up to 72 hours
Spectrogram: Collect data up to 72 hours
ence
Channel Scanner (Option 27)
Number of Channels: 1 to 20
GPS (Option 31)
GPS Location Indicator: Latitude, Longitude and Altitude on display
GPS High Frequency Accuracy when GPS antenna is connected:
±25 ppb with GPS ON, 3 minutes after satellite lock in the selected
operating mode
–30 dBm to +20 dBm
GHz to 6 GHz: ≥20 dB
2
0.01 dB
8 to 18 Vdc (supplied by instrument via
USB connector)
excluding SWR effects
Latitude, Longitude and
Altitude with trace storage
0.16 dB*
±
nternal High Accuracy, when GPS antenna is not connected:
I
Better than ±50 ppb for 3 days from a High Accuracy GPS Lock
nd within 0º C to 50º C ambient temperature
a
Connector: Reverse polarity BNC
cdmaOne and CDMA2000 1xRTT Over The Air (OTA)
(Option 33) and EVDO Over The Air (OTA) (Option 34)
Over the Air Measurement: Nine strongest pilots with Tau and Ec/Io
ix multipaths relative to strongest pilot
S
W-CDMA/HSDPA OTA (Option 35)
Resolution: 0.1 dB
GSM/GPRS/EDGE RF Measurements (Option 40)
Occupied Bandwidth: Bandwidth within which 99% of the power
transmitted on a single channel lies
Burst Power: ±1 dB typical for –50 dBm to +20 dBm (±1.5 dB max)
Frequency Error: ±10 Hz + time base error, 99% confidence level
Channel Power Accuracy: ±1 dB typical for RF Input from
+20 dBm to –50 dBm (±1.5 dB maximum)
cdmaOne and CDMA2000 1xRTT Demodulator
(Option 43)
Residual Rho: >0.995 typical for RF Input from +20 dBm to –50 dBm
(>0.99 dB maximum)
Rho Accuracy: ±0.01 for Rho > 0.9
Frequency Error: ±20 Hz + Time base error, 99% confidence level
PN Offset: within 1 x 64 chips
Pilot Power Accuracy: ±1 dB typical, relative to Channel Power
Tau: ± 0.5 µs typical (±1 µs maximum)
W-CDMA/HSDPA RF Measurements (Option 44)
Frequency Ranges: 824 to 894 MHz, 1710 to 2170 MHz,
2300 to 2700 MHz
RF Channel Power (T
±0.7 dB typical±1.25 dB max
Occupied Bandwidth
Residual Adjacent Channel Leakage Ratio (ACLR)***
(824 to 894 MHz, 1710 to 2170):
Leakage Ratio (ACLR)***
(2300 to 2700 MHz): –54 dB typical at 5 MHz offset
ACLR Accuracy (Single Channel Active)
(824 to 894 MHz, 1710 to 2170 MHz):
±0.8 dB for ACLR ≥–45 dB at 5 MHz offset
±0.8 dB for ACLR ≥–50 dB at 10 MHz offset
Accuracy (Single Channel
ACLR
±1.0 dB for ACLR ≥–45 dB at 5 MHz offset
±1.0 dB for ACLR ≥–50 dB at 10 MHz offset
Frequency Error:
±10 Hz + time base error
emperature range 15ºC to 35º C):
Accuracy:
–57 dB typical at 10 MHz offset
±100 kHz
–54 dB typical at 5 MHz offset
–59 dB typical at 10 MHz offset
Active) (2300 to 2700 MHz):
, 99% confidence level
* Excludes mismatch errors.
Excludes noise, zero set, zero drift for levels <–20 dBm.
Excludes digital modulation uncertainty between +17 and +20 dBm.
** After 30 min warm-up
*** Depends on reference level, input signal level and single channel conditions
3
W-CDMA Demodulation and W-CDMA/HSDPA
D
emodulator (Options 45 and 65)
EVM Accuracy*** (824 to 894 MHz, 1710 to 2170 MHz):
(3GPP Test Model 4) ±2.5%; 6 ≤EVM ≤25%
VM Accuracy*** (2300 MHz to 2700 MHz):
E
(3GPP Test Model 5) ±2.5%; 6 ≤EVM ≤20%
esidual EVM:2.5% typical
R
Code Domain Power: ±0.5 dB for code channel power >–25 dB
6, 32, 64 DCPH (test model 1)
1
16, 32 DCPH (test model 2, 3)
CPICH (dBm) Accuracy: ±0.8 dB typical
Scrambling Code: 3 seconds
Fixed WiMAX RF Measurements (Option 46)
Channel Power Accuracy****: ±1 dB typical for +20 dBm to –50 dBm
(±1.5 dB max)
Fixed WiMAX Demodulator (Option 47)
Residual EVM (rms): 3% for +20 dBm to –50 dBm (3.5% max.)
Frequency Error: ±10 Hz + time base error, 99% confidence level
Mobile WiMAX Specifications
Bandwidths: 5MHz, 8.75 MHz, 10 MHz
Frame Length: 5ms, 10ms
Zone types: PUSC
DL-MAP Auto Decoding: Convolutional Coding (CC)
Mobile W
iMAX Over the Air (OTA) Measur
ements
(Option 37)
Time Interval: 1sec – 60sec
Measurement duration: 72 hours max
Auto Save: Yes
GPS logging: Yes
Mobile W
Channel Power Accuracy: ±1 dB Typical (±1.5 dB max)
Mobile W
For +20 dBm to –50 dBm, Residual EVM (rms): 2.5% typical (3% max),
@ – 50 dbm on FCH
Frequency Error: ±0.02 ppm + time base error, 99% confidence level
iMAX RF Measurements (Option 66)
for +20 dBm to –50 dBm
iMAX Demodulator (Option 67)
EVDO Demodulator (Option 63)
Demodulator Measurements are EVDO Rev A compatible.
Residual Rho:
Rho Accuracy: ±0.01 for Rho >0.9
Frequency Error: ±20 Hz + T
PN Offset: within 1 x 64 chips
Pilot Power Accuracy: ±1 dB typical relative to Channel Power
au:
T
± 0. 5 µs typical (±1 µs maximum)
*** Depends on reference level, input signal level and single channel conditions
****Will vary with amount of data burst traffic
>0.995 typical for RF Input from +20 dBm to –50 dBm
(>0.99 dB maximum)
ime base error
, 99% confidence level
General
RF Input VSWR: (≥10 dB input attenuation) 2.0:1 max, 1.5:1 typical
Maximum Continuous Input: (≥10 dB input attenuation) +30 dBm
eight
1
:
2
nput Damage Level
I
≥10 dB input attenuation, >+43 dBm, ±50 Vdc
<10 dB input attenuation, >+23 dBm, ±50 Vdc
1
Input protection relay opens at >30 dBm with ≥10 dB input attenuation
and at approximately 10 to 23 dBm with <10 dB input attenuation.
2
with limited dV/dt.
SD Damage Level:(≥10 dB input attenuation) >10 kV
E
External Reference Frequencies: 1, 1.2288, 1.544, 2.048, 2.4576, 4.8,
4.9152, 5, 9.8304, 10, 13 and 19.6608 MHz at –10 dBm to +10 dBm
Battery Life: 2.5 hours typical
Display
Bright daylight-viewable color transmissive LCD: Full SVGA, 8 in.
Languages
Built-in English, Spanish, Italian, French, German, Japanese, Korean, and
Chinese. The instrument also has the capability to have two customized
languages installed from Master Software Tools.
Marker Modes
6 Markers, 9 Modes: Normal, Delta, Marker to Peak, Marker to Center,
Marker to Reference Level, Next Peak Left, Next Peak Right, All Markers Off,
Noise Marker, Frequency Counter Marker (1 Hz resolution), Markers Tracking
or Fixed, Marker 1 reference for all deltas.
Sweeps
Full span, Zero span, Span Up/Span Down
Detection
Peak, Negative peak, Sample, RMS, Quasi-peak
Memory
Trace and Setup storage is limited only by the capacity of the installed
Compact Flash card or USB Flash drive. For a 256 MB card, storage is
greater than 13000 spectrum analyzer traces and over 10000 setups.
Traces
Displayed Traces: Three Traces with trace overlay. Trace A is always the live
data; Traces B and C can be either stored data or traces which have been
mathematically manipulated. Also Trace C can show max hold or min hold.
Interfaces
Type N female RF connector for Spectrum Analyzer input
Type N female RF connector for optional Tracking Generator
Reverse polarity BNC jack for optional GPS antenna connector
BNC female connectors for ext. reference and ext. trigger
5-pin Mini-B USB 2.0 for data transfer to a PC
USB 2.0 Host connector used with PSN50 High Accuracy Power Meter
and USB Flash Drives
RJ45 connector for Ethernet 10/100 Base T
2.5 mm 3-wire headset connector
Size and W
Size: 313W x 211H x 77D mm (12W x 8H x 3D in.)
Weight: 3.1 kg (<6.9 lbs.) typical
Environmental
MIL-PRF-28800F class 2
Operating: –10º C to 55º C, humidity 85% or less
Storage: –51º C to 71º C
Altitude: 4600 meters, operating and non-operating
Safety
Conforms to EN 61010-1 for Class 1 portable equipment
Electromagnetic Compatibility
Meets European Community requirements for CE marking.
4
Ordering Information
Model
MS2721B Handheld Spectrum Analyzer
9 kHz to 7.1 GHz
Options
ption MS2721B-009IQ Demodulation Hardware
O
ption MS2721B-019High Accuracy Power Meter
O
PSN50 sensor not included)
(
ption MS2721B-020Tracking Generator
O
ption MS2721B-025Interference Analysis
O
ption MS2721B-027Channel Scanner
O
ption MS2721B-031GPS (includes GPS antenna)
O
ption MS2721B-033cdmaOne and CDMA2000 1xRTT Over the Air
O
OTA) (requires Opt. 009, 031)
(
Option MS2721B-034EVDO Over The Air (OTA) Measurement
(requires Opt. 009, 031)
Option MS2721B-035W-CDMA/HSDPA OTA (requires Opt. 009 and 031)
Option MS2721B-037Mobile WiMAX Over The Air (OTA) Measurement